using ClaudeDo.Data.Git;
using ClaudeDo.Data.Models;
using ClaudeDo.Data.Repositories;
using ClaudeDo.Worker.Config;
using ClaudeDo.Worker.Hub;
using ClaudeDo.Worker.Runner;
using ClaudeDo.Worker.Tests.Infrastructure;
using ClaudeDo.Worker.Tests.Services;
using Microsoft.Extensions.Logging.Abstractions;
using TaskStatus = ClaudeDo.Data.Models.TaskStatus;
using Xunit;

namespace ClaudeDo.Worker.Tests.Runner;

public sealed class StandaloneChildrenRoutingTests : IDisposable
{
    private readonly DbFixture _db = new();
    private readonly WorkerConfig _cfg;
    private readonly string _tempDir;

    public StandaloneChildrenRoutingTests()
    {
        _tempDir = Path.Combine(Path.GetTempPath(), $"cd_routing_{Guid.NewGuid():N}");
        Directory.CreateDirectory(_tempDir);
        _cfg = new WorkerConfig { SandboxRoot = _tempDir, LogRoot = _tempDir };
    }
    public void Dispose() { _db.Dispose(); try { Directory.Delete(_tempDir, true); } catch { } }

    [Fact]
    public async Task StandaloneSuccess_withChild_goesWaitingForChildren_andEnqueuesChild()
    {
        var dbFactory = _db.CreateFactory();
        using (var ctx = _db.CreateContext())
        {
            ctx.Lists.Add(new ListEntity { Id = "l1", Name = "L", WorkingDir = null, CreatedAt = DateTime.UtcNow });
            ctx.Tasks.Add(new TaskEntity { Id = "p1", ListId = "l1", Title = "Parent",
                Status = TaskStatus.Running, CreatedAt = DateTime.UtcNow });
            ctx.Tasks.Add(new TaskEntity { Id = "kid", ListId = "l1", Title = "Improve",
                Status = TaskStatus.Idle, ParentTaskId = "p1", CreatedBy = "p1", CreatedAt = DateTime.UtcNow });
            await ctx.SaveChangesAsync();
        }
        var fake = new FakeClaudeProcess((_, _, _, _, _) =>
            Task.FromResult(new RunResult { ExitCode = 0, ResultMarkdown = "done" }));
        var broadcaster = new HubBroadcaster(new FakeHubContext());
        var state = TaskStateServiceBuilder.Build(dbFactory).State;
        var wt = new WorktreeManager(new GitService(), dbFactory, _cfg, NullLogger<WorktreeManager>.Instance);
        var runner = new TaskRunner(fake, dbFactory, broadcaster, wt, new ClaudeArgsBuilder(), _cfg,
            NullLogger<TaskRunner>.Instance, state, new TaskRunTokenRegistry());

        using (var ctx = _db.CreateContext())
            await runner.RunAsync((await new TaskRepository(ctx).GetByIdAsync("p1"))!, "slot-1", default);

        using var verify = _db.CreateContext();
        var repo = new TaskRepository(verify);
        Assert.Equal(TaskStatus.WaitingForChildren, (await repo.GetByIdAsync("p1"))!.Status);
        Assert.Equal(TaskStatus.Queued, (await repo.GetByIdAsync("kid"))!.Status);
    }

    [Fact]
    public async Task StandaloneSuccess_noChildren_goesWaitingForReview()
    {
        var dbFactory = _db.CreateFactory();
        using (var ctx = _db.CreateContext())
        {
            ctx.Lists.Add(new ListEntity { Id = "l1", Name = "L", WorkingDir = null, CreatedAt = DateTime.UtcNow });
            ctx.Tasks.Add(new TaskEntity { Id = "solo", ListId = "l1", Title = "Solo",
                Status = TaskStatus.Running, CreatedAt = DateTime.UtcNow });
            await ctx.SaveChangesAsync();
        }
        var fake = new FakeClaudeProcess((_, _, _, _, _) =>
            Task.FromResult(new RunResult { ExitCode = 0, ResultMarkdown = "done" }));
        var state = TaskStateServiceBuilder.Build(dbFactory).State;
        var wt = new WorktreeManager(new GitService(), dbFactory, _cfg, NullLogger<WorktreeManager>.Instance);
        var runner = new TaskRunner(fake, dbFactory, new HubBroadcaster(new FakeHubContext()), wt,
            new ClaudeArgsBuilder(), _cfg, NullLogger<TaskRunner>.Instance, state, new TaskRunTokenRegistry());

        using (var ctx = _db.CreateContext())
            await runner.RunAsync((await new TaskRepository(ctx).GetByIdAsync("solo"))!, "slot-1", default);

        using var verify = _db.CreateContext();
        Assert.Equal(TaskStatus.WaitingForReview, (await new TaskRepository(verify).GetByIdAsync("solo"))!.Status);
    }
}